Freeze-dried fruit processing system and control method thereof

Abstract

The invention discloses a freeze-dried fruit processing system. The freeze-dried fruit processing system comprises a vacuum freeze drying machine, a near-infrared spectral detector and a controller, wherein the near-infrared spectral detector is used for acquiring a near-infrared spectrum of a to-be-detected fruit in a vacuum freeze drying machine; the controller stores a control instruction and is used for controlling the vacuum freeze drying machine to work; and the controller also stores a water content quantitative analysis model of different freeze-dried phases of a standard fruit sample,the controller determines the water content of the to-be-detected fruit near-infrared spectrum according to the water content quantitative analysis model of different freeze-dried phases, the controller judges whether the water content of the to-be-detected fruit reaches the water content of the standard fruit sample of the current freeze-dried phase, and if yes, the controller controls the vacuum freeze drying machine to adjust the freeze-drying control data or to stop working. By adopting the near-infrared spectrometer to detect the water content of the fruit in the freeze-dried processingprocess, the freeze-dried control data is automatically adjusted according to a detection result, so that not only can the energy be saved, but also the quality of the freeze-dried fruit can be ensured.

Description

technical field [0001] The invention relates to the technical field of processing ginseng medicinal materials, in particular to a freeze-dried fruit processing system and a control method thereof. Background technique [0002] In recent years, vacuum freeze-drying technology and related equipment have been rapidly applied in the field of food deep processing in developed countries such as the United States, France, Germany, and Sweden, and have been continuously improved. The rational application of these technologies and equipment has significantly improved the value-added capabilities of food processing in developed countries. Compared with developed countries, the development history of vacuum freeze-drying technology in my country is relatively short. With the rapid development of international freeze-drying technology and my country's economic construction, as well as the continuous improvement of people's living standards, the demand for freeze-dried food in the inter...

AI Technical Summary

Problems solved by technology

[0004] At present, the freeze-drying process of fruits is mainly to dry the pre-frozen fruits quickly at a higher temperature, and often needs to add emulsifiers, gels, color-protecting agents, etc., which lacks the ability to provide color, shape, taste and nutrition. Additive-free freeze-drying system that keeps fresh fruit consistent

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